CIONISTES.—ACHIA. 149 
sometimes becomes ochreous at the sides of the prothorax and at the base of the elytra. Head rugulose, 
the eyes not very prominent and narrowly separated above; rostrum rather stout, moderately curved, a 
little longer than the head and prothorax, rugosely punctured and longitudinally wrinkled, smoother and 
shining at the tip, the antenne (¢) inserted at about two-fifths from the apex, joint 1 of the funiculus 
as long as 2-4 united, joints 3-7 transverse. Prothorax short and broad, rounded at the sides, strongly 
constricted and much narrowed in front and also narrowed behind, the base bisinuate, the surface densely 
punctate. Elytra much wider than the prothorax, widening from the base to a little beyond the middle, 
rather short, somewhat lobed in front on each side of the scutellum, the humeri swollen, rounded ; 
deeply punctate-striate, the interstices convex and faintly rugulose. Legs comparatively short and stout ; 
anterior femora strongly clavate, rugose, and armed with a long triangular tooth, the intermediate and 
hind femora also with an acute tooth, that on the hind pair short; anterior tibise rugose, stout, sinuous 
within ; tarsal claws with a broad tooth. 
Length 23-23, breadth 13-13 millim. (<.) 
Hab, Guatemaua, Duefias, Capetillo (Champion). 
Three specimens. 
ACHIA, gen. nov. 
Achia, Pascoe, in litt. 
Head strongly constricted behind the laterally placed, prominent eyes, which are oval when viewed in profile ; 
rostrum moderately long, tapering or cylindrical, the scrobes gradually descending to the lower edge of 
the eye; antenne inserted towards the apex of the rostrum in the d, further back in the 9, the 
funiculus 7-jointed, the club ovate; prothorax transverse, constricted and tubulate in front, sinuate at 
the base ; elytra short and broad, gibbous or convex, covering the pygidium ; prosternum extremely short, 
emarginate in front; ventral segments 3 and 4 a little shorter than 2; legs short and stout, anterior 
femora greatly incrassate, and armed with two triangular teeth, the inner one large, the other femora 
with an acute tooth; anterior tibie strongly curved and unguiculate, the others almost straight, the 
intermediate pair mucronate ; tarsal claws with a long tooth ; body densely pubescent, Cioniform. 
This genus includes three species from within our limits and other undescribed 
South-American forms, which are readily distinguishable by their strongly constricted 
head, the eyes appearing, at first sight, to be placed at the sides of the rostrum, 
as in Dioptrophorus, &c., of the group Anchonina. The anterior femora and tibie 
are shaped much as in Prionomerus. The Mexican dA. rhombifera is very like a 
Cionus, and the resemblance is further accentuated by the dark patch at the base of 
the elytra. 
1. Achia rhombifera, sp.n. (Tab. IX. figg.7, 7a, ?.) 
Broad-ovate, very robust, densely rugulose, opaque, piceous or ferruginous, the antenne (the club excepted) 
and legs (the anterior femora and tibi, in part, excepted) testaceous ; densely clothed with short, fine, 
pale greyish pubescence, which becomes ochreous in places, intermixed with a few short curled hairs ; 
the elytra with a large, common, rhomboidal patch at the base, extending on to the posterior portion 
of the prothorax (but not on to the scutellum), purplish-black or fulvous, and with a large apical patch 
and the humeri ochreous or reddish-ochreous, the prothorax with a transverse curved space on the disc 
behind similarly coloured, the head and rostrum also with ochreous pubescence, the pubescence on the 
under surface long and piliform. Rostrum rather slender, tapering, about as long as the head and 
prothorax, the apical two-fifths very sparsely punctate, shining, and glabrous, the antenne inserted a 
little before the middle, joint 1 of the funiculus twice as long as 2. Prothorax transverse, abruptly 
constricted anteriorly, the sides rounded before the middle and subparallel thence to the base. Elytra 
gibbous, one-half wider than the prothorax ; punctate-striate, the interstices broad, feebly convex, 
